In JavaScript, we'll be using the fetch API to send HTTP requests. Here's how you can use the book search API with JavaScript:

First, make sure you have access to the fetch API. It's built into most modern browsers, but if you're running this in a Node.js environment, you might need to install and import a package like node-fetch.

async function searchBook(query) {
    const url = '';
    const options = {
        method: 'POST',
        headers: {
            'Content-Type': 'application/json',
            'x-api-key': process.env.PROMPTJOY_API_KEY
        body: JSON.stringify({ query: query })

    const response = await fetch(url, options);

    if (!response.ok) {
        throw new Error(`HTTP error! status: ${response.status}`);

    const data = await response.json();
    return data;

You can call this function with the search term as follows:

    .then(data => console.log(data))
    .catch(error => console.log('There was an error!', error));

Replace "your_search_term" with the book you're searching for. This function will return a promise that resolves to the search results.

Note: This example uses the Fetch API, which returns Promises. If you're not familiar with Promises or async/await syntax, you might want to read up on those.

Remember to handle exceptions and errors as needed in your actual application code.

Note: In this example, the API key is retrieved from environment variables for security reasons. Ensure that you've set the PROMPTJOY_API_KEY environment variable in your environment where this code will be executed. If you're running this in a browser, you'll need to set this in some secure way, as exposing your API key in the client-side JavaScript code is not recommended.

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